How and where would you adjust the idle on a 318 5.2L in a 1988 Dodge Ram Van? It always seems to want to pull out at 15 mph, a bit high for idle. I also had a Fuel Rich Burn error code when I read the check engine light, how would this be fixed. Would the be a result of a high idle?

I've posted pictures below of the throttle body, maybe if the idle (screw?) could be circled it would be a great help. Thanks in Advance.

 

need to adjust the spark plug wires so they are not touching each other. not sure about the burn issue.

 

Sorry about the less than MS Paint Quality. I found where it adjusts. It is the bolt (5/16ths) the red line is circling, for future references.

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